Chemical tanker · United Kingdom flag · built 2017
STENA IMPERATOR: CO₂ emissions 2018–2025
IMO 9797383 EU ETS8 reporting years
- CO₂ reported 2024
- 3,287 t
- Fuel burned
- 1,050 t
- Distance
- 12,192 nm
- Time at sea
- 1,018 h
- Emitted at berth
- 7% of total
- Share of year under way
- 12%
- Gross tonnage
- 29,579
STENA IMPERATOR against its type
Built in 2017, it is 7 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,579 gross tonnage it is larger than 77% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 8 chemical tankers here under the United Kingdom flag, 0.3% of the 2,344 on the register. The same builder is recorded for 192 other vessels here, 87 of them chemical tankers. The returns for 2020–2025 all give London as port of registry.
Its 3,287 t of CO₂ for 2024 is 44% below the median of 5,830 t among the 1,451 chemical tankers on this register that reported for 2024. Per nautical mile it emitted 269.6 kg CO₂, close to the type median of 253.5 kg. It logged 1,018 hours at sea against a median of 2,177 hours for its type that year. 7.1% of its 2024 emissions were at berth; the median for chemical tankers was 5.9%. Across 7 years with reported emissions, the highest was 2019 (5,871 t) and the lowest 2024 (3,287 t). Its efficiency percentile within the type went from 24 in 2018 to 5 in 2024 (lower is more efficient).
No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2024 | 3,287 | 1,050 | 12,192 | 1,018 | 234 | 269.6 | 7.4 | 5 |
| 2023 | 5,620 | 1,793 | 19,880 | 1,732 | 249 | 282.7 | 7.5 | 4 |
| 2022 | 5,349 | 1,696 | 16,413 | 1,431 | 627 | 325.9 | 10.6 | 20 |
| 2021 | 4,449 | 1,423 | 17,332 | 1,419 | 295 | 256.7 | 10.4 | 16 |
| 2020 | 5,637 | 1,797 | 21,980 | 2,021 | 378 | 256.4 | 6.8 | 2 |
| 2019 | 5,871 | 1,869 | 19,007 | 3,382 | 636 | 308.9 | 9.5 | 59 |
| 2018 | 5,386 | 1,716 | 24,958 | 2,312 | 414 | 215.8 | 5.9 | 24 |
Vessel particulars
- IMO number
- 9797383
- Ship type
- Chemical tanker
- Gross tonnage
- 29,579
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2017
- Flag state
- United Kingdom per EU MRV 2025
- Port of registry
- London MRV 2024
- Technical efficiency (design)
- EEXI (4.34 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2025-02-26
- Compliance document expires
- 2026-06-30
Efficiency against its own type2024
Position 60 of 1,194 qualifying chemical tankers by EEOI, at the 5th percentile. The dashed line is the type median, 15.9; this vessel reported 7.4.
EEOI divides emissions by transport work, which for this vessel and year was 441,823,925 tonne-miles over 12,192 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2024 was 39.0% lower than in 2018, for EU/EEA voyages only.
From 2023 to 2024, emissions fell 41.5% while distance sailed fell 38.7%and CO₂ per nautical mile fell 4.6%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2024 emissions occurred
Methane, nitrous oxide and EU ETS2024
- Total CO₂ equivalent
- 3,339 t
- Methane (CH₄)
- 0.05 t
- Nitrous oxide (N₂O)
- 0.19 t
- Under EU ETS
- 1,780 t, 54% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | DNV | Germany |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 8 MRV reporting years, an efficiency ranking and 5 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.